P3D Re: twin cameras

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Rod Sage writes:

>Also, #3 [normal interocular distance] can easily be achieved with base 
>to base cameras and the images can be cropped to realist format. My Nikon
>FM's would have a 60mm base.

Yes, with two complications:  1) Mounting in 41x101 mounts is difficult
as you have no sprocket holes to work with, 2) In cases of close-ups
mainly, the cameras must converge or there will not be enough film width
to use a Realist mount and set the correct stereo window.  These two 
complications (plus the synchronized shutters) led me to get an RBT X4 
camera.  It costs a lot of money for frustration-free stereo :-)
    
>However I could easily list a dozen advantages to twin SLRs in certain
>situations.

I fully agree!  That's why I use both stereo cameras and SLRs.  Each
one in its own domain.  There is no question about that.  

George Themelis